Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
tu sach » thu sach, su sach, te sach
danh vi » dinh vi, danh di, danh va
cau luc » cau truc, cau phuc
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
luc va » duc va, tuc va, loc va
ve cau » ke cau, va cau, ve cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat san)) ky nang xa hoi. hieu ve cau luc va ((danh vi) or (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat san)) ky nang xa hoi. hieu ve cau luc va ((danh vi) OR (hanh vi)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat san)) ky nang xa hoi. hieu ve cau luc va ((danh vi) or (hanh vi)) cuu tre*.